Home / 4,716.75-7,078.37-1,638.75

Finding the Fourth Proportional to 4,716.75, 7,078.37 and 1,638.75

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Solution

The fourth proportional to 4,716.75, 7,078.37 and 1,638.75 is: 2,459.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,716.75 : 7,078.37 = 1,638.75 : x
  2. Step 2: Convert to fraction form
    4,716.75/7,078.37 = 1,638.75/x
  3. Step 3: Cross multiply
    4,716.75x = 7,078.37 × 1,638.75
  4. Step 4: Simplify right side
    4,716.75x = 11,599,670.64
  5. Step 5: Solve for x
    x = 11,599,670.64/4,716.75
  6. Step 6: Final answer
    x = 2,459.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.